Louis "Lou" Slaughter is an actor and stuntman who was a regular extra throughout the first seasons of Star Trek: Voyager. Beside his acting work, he also performed utility stunts on Voyager under stunt coordinator Dennis Madalone. As a background actor he received no on-screen credit for his appearances.

Slaughter is an experienced stuntman with skills in martial arts, firearm handling, and motorcycle work. With an army background of four years, he studied acting in Ontario, New York, and Los Angeles. Slaughter has appeared in several stage plays and commercials and is also a voice actor.